Siemens SIMATIC NET PROFIBUS Betriebsanleitung PDF herunterladen (Seite 31)

Product Characteristics

4.2 Installation

SIMATIC NET PROFIBUS Optical Link Module OLM V4.0

Operating Instructions, 01/2013, C79000-G8976-C270-03

Mode “electrical channel without segment monitoring“

CH1 is set to this mode, when S0 is in position 1.

Note: This mode should only be set in the star segment of the star topology.

4.2.3.4 Setting the mode of the electrical channel (CH0)

Only for OLM / P22 and OLM / G22

Mode “electrical channel with segment monitoring“

CH0 is set to this mode, when S8 is in position 0.

Mode “electrical channel without segment monitoring“

CH0 is set to this mode, when S8 is in position 1.

Note: This mode should only be set in the star segment of the star topology.

4.2.3.5 Setting the mode of the optical channels (CH2, CH3)

The mode can be set separately for each optical channel. Combinations of the modes “bus

with and bus without fiber-optic link monitoring” are possible. Remember that the two optical

channels connected via the fiber-optic cables must always be set to the same mode! When

operating with devices that do not provide “fiber-optic link monitoring” this mode cannot be

used and must be disabled on the OLM V4.

If mode “redundant optical ring” is used, both optical channels have to be set to this mode

accordingly.

Mode “bus with fiber-optic link monitoring and segmentation”

CH2 is set to this mode, when S1 and S2 are in position 0.

CH3 is set to this mode, when S3 and S4 are in position 0.

Mode “bus without fiber-optic link monitoring”

CH2 is set to this mode, when S1 is in position 1 and S2 is in position 0.

CH3 is set to this mode, when S3 is in position 1 and S4 is in position 0.

Mode “redundant optical ring“

CH2 is set to this mode, when S1 and S2 are in position 1.

CH3 is set to this mode, when S3 and S4 are in position 1.

Note: Remember that both optical channels of a module must be set to the same mode.

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Siemens SIMATIC NET PROFIBUS Betriebsanleitung Seite 31